Home / 1,691.64-2,517.36-1,626.02

Finding the Fourth Proportional to 1,691.64, 2,517.36 and 1,626.02

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Solution

The fourth proportional to 1,691.64, 2,517.36 and 1,626.02 is: 2,419.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.64 : 2,517.36 = 1,626.02 : x
  2. Step 2: Convert to fraction form
    1,691.64/2,517.36 = 1,626.02/x
  3. Step 3: Cross multiply
    1,691.64x = 2,517.36 × 1,626.02
  4. Step 4: Simplify right side
    1,691.64x = 4,093,277.71
  5. Step 5: Solve for x
    x = 4,093,277.71/1,691.64
  6. Step 6: Final answer
    x = 2,419.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.